148 DR. FEED. MULLEE's BOTANICAL EEPOET 



refer to the mangrove plants with their usual companions, viz. 

 Ceriops, JRhizophora, Bruguiera, Avicennia, Suriana, JEgiceras, 

 ^gialitis, Pemphis, &c. On the sandy coast, Colubrina asiatica, 

 Pandanus, Spinifex fragilis, Triumfetta procumbens, Trihulus, &c., 

 are conspicuous. 



7. The following plants are, along the banks of the northern 

 rivers, of frequent occurrence: — the broad-leaved Terminalia 

 Chuncoa (the raspberry-tree of Leichhardt), Jamhosa eucalgptoides, 

 Morinda Leichhardtii, Inga moniliformis^ Warringtonia, Agati, 

 Polygonum CumningTiami (which surrounds also frequently the 

 lagoons of the interior), Pandanus, Melaleuca Leucadendron, Eu- 

 calyptus rostrata, &c., whilst the vegetation of the grassy valleys 

 bears a resemblance to that of the basaltic downs. 



Several other localities with a vegetation of their own, but of 

 less extent or not sufficiently known, cannot be noted on this 

 occasion. Thus the porphyritic ranges which separate the rivers 

 of the G-ulf of Carpentaria from those of the eastern coast, the 

 granitic valley of the Nicholson, and other places, are productive 

 of plants which rely upon peculiar geological structures. 



I beg to transmit with this report the remaining number of 

 systematical descriptions of new or rare plants, drawn up almost 

 exclusively on the spots of discovery, and which illustrate, with 

 the addition of those forwarded on the forme^f occasions, nearly 

 600 species ; but I have to regret, that in consequence of the de- 

 struction of part of the botanical collections on board of the 

 " Messenger," I am not enabled to accompany, in a few instances, 

 these manuscripts with corresponding specimens. 



I beg also to append to this communication two lists of plants. 

 In the first I have endeavoured to determine the northern limits of 

 243 species from the more southern latitudes of Australia, which 

 gradually appeared on the lines of exploration from lat. 17° 30' 

 south, to lat. 27° south. Probably a slight variation in their range 

 will be observed hereafter under other meridians : still I believe 

 that the limits assigned to them will be found approximately 

 correct for the eastern part of the country within a moderate 

 distance from the coast. The second Appendix contains a sy- 

 stematical catalogue of nearly all the genera of plants observed 

 during the journey, with their respective number of species ; 

 and this may serve as an outline of the tropical vegetation of 

 Australia. 



In conclusion, I perform a pleasing duty in acknoAvledging most 

 thankfully the ample opportunities offered by yourself for the 



